. >> reporter: contrition which rang hollow to 17-year-old trayvon martin's parents, speaking on cnn this morning. >> god did not have a plan for trayvon to die. >> reporter: zimmerman told the story similar to the one he told investigators in march. >> he asked me what my problem was. >> reporter: veteran defense attorney and i huddled over this video and exchanges like this one jumped out. >> you did not continue to follow him at that point? >> no, sir. >> reporter: that contradicting what zimmerman told police that night. >> are you following him? >> yes. >> okay, you don't need to do that. >> that was number one problem with his interview. he contradicted his statement that he made during the 911 call. >> reporter: and watching not only viewers but the prosecution. >> this is going to get him in big trouble. >> absolutely. when i was a prosecutor, i looked for any inconsistencies to undermine witness stand's statement. this is an enormous piece of evidence. >> >> the prosecution declaring that witness part of discovery, it's no longer just news, it's evidence. matt gutman, abc ne